PoC

Gemfile

@@ -19,6 +19,8 @@ gem "bootsnap", ">= 1.4.4", require: false
 gem "govuk-components"
 # GOV UK component form builder DSL
 gem "govuk_design_system_formbuilder"
+# GOV UK Notify
+gem "notifications-ruby-client"
 # Turbo and Stimulus
 gem "hotwire-rails"
 # Soft delete ActiveRecords objects

Gemfile.lock

@@ -186,6 +186,7 @@ GEM
       thor (>= 0.14, < 2.0)
     json-schema (2.8.1)
       addressable (>= 2.4)
+    jwt (2.3.0)
     kaminari (1.2.2)
       activesupport (>= 4.1.0)
       kaminari-actionview (= 1.2.2)
@@ -234,6 +235,8 @@ GEM
       racc (~> 1.4)
     nokogiri (1.13.1-x86_64-linux)
       racc (~> 1.4)
+    notifications-ruby-client (5.3.0)
+      jwt (>= 1.5, < 3)
     orm_adapter (0.5.0)
     overcommit (0.58.0)
       childprocess (>= 0.6.3, < 5)
@@ -435,6 +438,7 @@ DEPENDENCIES
   hotwire-rails
   json-schema
   listen (~> 3.3)
+  notifications-ruby-client
   overcommit (>= 0.37.0)
   pg (~> 1.1)
   postcodes_io

app/mailers/notify_devise_mailer.rb

@@ -0,0 +1,15 @@
+class NotifyDeviseMailer < Devise::Mailer
+  require 'notifications/client'
+
+  def reset_password_instructions(record, token, opts = {})
+    client = ::Notifications::Client.new(ENV["GOVUK_NOTIFY_API_KEY"])
+    client.send_email(
+      email_address: record.email,
+      template_id: "8f1dea41-60e8-4aa2-a23b-f3a751a7438f",
+      personalisation: {
+        email: record.email,
+        link: "#{ENV['host']}/users/password/edit?reset_password_token=#{token}"
+      }
+    )
+  end
+end

config/initializers/devise.rb

@@ -24,10 +24,11 @@ Devise.setup do |config|
   # Configure the e-mail address which will be shown in Devise::Mailer,
   # note that it will be overwritten if you use your own mailer class
   # with default "from" parameter.
-  config.mailer_sender = ENV["CORE_EMAIL_USERNAME"]
+  # config.mailer_sender = ENV["CORE_EMAIL_USERNAME"]
 
   # Configure the class responsible to send e-mails.
   # config.mailer = 'Devise::Mailer'
+  config.mailer = "NotifyDeviseMailer"
 
   # Configure the parent class responsible to send e-mails.
   # config.parent_mailer = 'ActionMailer::Base'